Abstract
Concrete is a versatile construction material with various uses. It is has poor tensile strength and good compressive strength mechanical properties. In past, an effort has been made to improve concrete mechanical properties by mixing with various foreign materials such as synthetic and natural fibers, steel wires and plastics. However, there is research gap in literature to study comparative use of recycled and new materials for improving concrete mechanical properties. This research work experimentally investigates use of new glass fibers and recycled tire fibers in 0.5%, 1% and 1.5% in weight mixes with concrete to study concrete mechanical properties performance gains such as compressive, flexural and split tensile strength properties. Experimental results indicated as compared to control plain concrete specimen, use of recycled steel fiber and glass fibers in concrete mix increased flexural property of concrete by 19.64% and 24.56% whereas split tensile strength of concrete is enhanced by 8.15% and 12.02%, respectively. Similarly, compressive strength of concrete is improved by 5.34% and 7.87% respectively. Also, optimum blend percentage of recycled tire fiber and glass fiber for enhanced performance gains in concrete mechanical properties is one percent. Finally, use of recycled steel fibers and glass fibers in concrete exhibited similar concrete mechanical property performance gains however, recycled steel fibers has 78% direct cost reduction as compared to glass fibers.
Highlights
Concrete is a common and most frequently used in construction industry and which is composite material made up of inert material of different size, which is bound together with hydraulic binding material
To achieve the objectives outlined in this research work, the study was made in the following ways
Final the mechanical properties including compressive strength, Flexural Tensile strength and split Tensile strength were conducted at the age of 7th and 28th days
Summary
Concrete is a common and most frequently used in construction industry and which is composite material made up of inert material of different size, which is bound together with hydraulic binding material. The strength of concrete is depending on the strength of aggregate paste bond. Concrete is a brittle material which has low tensile strength, in the past attempts have been made to improve this Weak properties by using conventional reinforcement. To provide improved mechanical properties Fibrous composites have been and are being developed. When this brittle material loaded with tension initially deforms elastically and this repose followed by micro cracking, localized micro cracking and fractures. Application fibers into the concrete changes post elastic property in various ranges, depending on factors, types, modulus and aspect ratio of fiber, fiber matrix strength, fiber properties and strength, fiber bonding characteristics, fiber content and aggregate size effects. Application fibers into the concrete changes post elastic property in various ranges, depending on factors, types, modulus and aspect ratio of fiber, fiber matrix strength, fiber properties and strength, fiber bonding characteristics, fiber content and aggregate size effects. [3]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
